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MHT CET202312 May 2023Morning ShiftChemistryChemical KineticsActual

Calculate the rate constant of first order reaction if half life of reaction is 40 minutes.

Options

  1. A1.733 10⁻² minute ⁻¹
  2. B1.951 10⁻² minute ⁻¹
  3. C1.423 10⁻² minute ⁻¹
  4. D1.256 10⁻² minute ⁻¹

Correct answer

A. 1.733 10⁻² minute ⁻¹

Step-by-step solution

For a first order reaction, k= 0.693 t_ 1 / 2 k = 0.693 40 =1.733 10⁻² minute ⁻¹

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